Find the inverse of the one-to-one function.f(x) = x - 2
A. f-1(x) = 
B. f-1(x) = -2x
C. f-1(x) = 2x
D. f-1(x) = x + 2
Answer: D
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Write as mixed number.
A. 3
B. 1
C. 2
D. 2
Refer to the illustration. Find 
if 
and 
.
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A. 10
B. 
C. 
D. 
E. 14
Add or subtract, as indicated. Assume that all variables represent positive real numbers.9
+ 8
A. -25
B. 7
C. 25
D. 17
Solve the motion problem.A boat moves 9 kilometers upstream in the same amount of time it moves 19 kilometers downstream. If the rate of the current is 9 kilometers per hour, find the rate of the boat in still water. (Round your answer to the nearest tenth, if necessary.)
A. 9 kilometers per hour B. 8.1 kilometers per hour C. 17.1 kilometers per hour D. 25.2 kilometers per hour